Versioning
Jul 20, 2005
Dear friends,
In the area of GIS (Geographic Information Systems) there is a feature
known as versioning (long transactions).
This feature allows databases to maintain different versions of data,
in a hierachycal structure, in order to do simulation (what if ...),
historical snapshots, concurrent editing, etc.
Each version can be reconciled with its parent version in any moment
(merge-post changes).
I have recently seen that Oracle supports this feature from version
9i.
I am very interested in knowing if SQL server will support this
feature in future versions. Looking at SQL Server 2005 doc. I haven't
seen any related info.
Thanks,
Jerry
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Jun 12, 2007
I'm having problems to keep proper versioning control in place between the development and production environments. I'm running SQL2000 and we have hundreds of packages that runs daily. Some on shedules and some not.
Every time a package is saved, it creates a version in SQL Server. After development I want to be able to use something like "Visual Source Safe" and book the final version in that was moved into production. Something with a version number etc.
This is especially a problem if I want to roll back to a prior version of a package. I do not know which one of the 1000 versions to choose from that were created while developing the package.
Another problem is that I do not know if someone is working on a package if I want to work on it.
I can not run a search on all the packages to get a list of which tables/fields are used where to determine the impact of a program/database/design change that needs to be implemented.
Any suggestions would be helpfull.
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Jul 13, 2000
I have a big delimma. We are developing and application that requires parallel work to be done one different copies of databases at the same time. Then when one when group is done and ready to ship their bug fixes/features, the changes they make to the database and data have to be merge back into the baseline database.
Here's the specifics. 4 databases (that make up the product), 4 copies of the 4 database (one for each team).
I was thinking about using SQL DMO to attach to each database and comare each table's schema and data against the baseline (the current release) then scripting out the changes that were made.
Can someone give me some tips on how to maintain parallel database development and the merge process that can make this happen?
Thanks,
Kurt
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Sep 15, 2006
I replicate (transactional replication) my data entry database to aread-only database. Both are SQL 2000+SP4. The web server reads theread-only database. At times, there will be lots of changes in the dataentry database, thus lots of replications to the read-only database. Iam concerned that the replication may lock the data in the read-onlydatabase, causing slow response to the web server.I would like to use row versioning so that the read-only database cansupply old data when the same row is being written by replication. Iread that row versioning is a feature in SQL 2005. Is there anyversioning capability in SQL 2000?Thanks
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Feb 11, 2008
I have a question about how I should go about handling different database versions (schema changes) with my application. I am using an sdf database as a local data store (either on the .NET framework or Compact Framework).
I set it up so that the database file has the database schema, but no actual data, which is copied to the AppData folder if it isn't already there. The I load the database into the dataset, and can store data in the database with no problems.
What I want to figure out is what happens when I later decide to change the database schema. For example, say I add a column to a table. When I load the existing database into the dataset, I get an exception because the existing database doesn't have that column.
It seems that there should be some way to update the existing database so that it adds the column into the table, and sets the rows to just have NULL for that new column.
I am not sure if the TableAdapter or some other object should handle updating the existing database so it matches the latest dataset schema, or if I need to manually write SQL statements to modify the existing database.
Any help is appreciated.
Adam
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Nov 16, 2007
I was wondering if anyone knows if there is a way to version a report, after changes have been made kind of like there is to an application. when changes are made to an app with a version # of say 4.0.1 you can changge to 4.0.1. Without using a program like SourceSafe. Thanks in advance for the speed responses.
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Sep 4, 2007
Hi,
Could someone point me in the right direction? I have an internal development database and a production database. Is there an easy way to replicate the changes that have been made to the development version on the production server without modifying the actual data in the tables? So, if I add a new user in my development version I offcourse don't want to see it pop up in the live version. But adding/deleting/updating a new table or column should.
And if possible I'd also like to know how you could do the following: Let's say we have an OrderDetail table containing information about the purchased product. Let's say I'd like to add a new column 'total' to skip calculation on the database every time I want to know the totals. It should be able to initialise the value by doing 'times ordered * price' for every existing row. Is that possible as well?
Srry for the noob questions
edit: Using MSSQL 2005
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Jan 8, 2008
At ScottGu's Blog about "Database Publishing Wizard", AlexD from codeplex said:
"Regarding the multiple requests for versioning, backup/restore of remote database, and selection of individual objects - these are all things we are actively looking at for our next release in the first half of 2007."
After so many searches, I still don't know if this tool performs Versioning, i.e, when deploying the database, just update de diferences between the local and server database.
Did Visual Studio Express 2008 have somethingh like that? (I know that VS Team Edition 2005 had).
If this tool can't make it (versioning), which tool/method did you recomend me?
Thanks in advance.
Alberto
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Jun 15, 2005
Anybody using this feature?How To Add SQL Server 2000 Stored Procedures to Visual SourceSafe by Using Visual Studio .NETany comments?
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Jun 22, 2005
I did a seach here and found some posts but none that answered my specific problem.I am a programmer tasked with building an application for generating Quote Proposals. The database is for the most part fairly simple except when it comes to versioning and history. Basiclly every quote can be revised and modified several times prior to making a final decision (final approved quote), so I need to keep track of the changes that occur durning the revision process. I am not a DBA but I have had some database experience. From what I can tell I have two choices a.) Duplicate all the data everytime the quote is revised. While this method is does cause a lot of duplicate data it is very straitforward and easy to explain (or turnover to someone else) and reporting becomes very easy as well.Reporting.... this is my biggest area of concern as the users of the app should have the ability to print out the original quote proposals as well as the revised quote proposals. Duplicating all the data makes reporting very easy.b.) Create a history table and record the original data (along with who and when) before recording the new value in the main table. While this method does conserve disk space it make reporting a bit difficult as you would have to pull the specific value for a specific Quote Revision and display the orginal values on the report instead of the current ones.Table info: I looking a 10 to 12 tables to record and store the data. The largest table will have about 40 fields. Current estimates are producing about 5 to 8 quotes per week. Each quote is revised an average of 2 to 3 times.Are the pros and cons I listed the main ones to be concerned with and are there any other options?Thanks
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Mar 6, 2001
Does Anyone know if there is a way to verify the SQL Service Pack Version on 7.0? Thanks. Dallas
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Mar 2, 2007
I have a small webapplication, sql server 2000. The users can only update the data in the system. However my client needs a report that display changes. The changes are that needs to be monitored are only change of order status, change of delivery date and when a user splits an order.
What is the best practice to keep track of changes? A mirror table for each table with changes?
/Magnus
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Jun 7, 2006
Hi All,
I'm new on SSIS, but have worked for some time with DTS and a long time with other ETL tools like Informatica or OWB.
I would like to know in which way can i, easily, control my project/package versions. At the same time i need to implement a concurrency management system, which will control what developer is using which package, and when finished update the central repository (As it does Informatica or even OWB).
I have heard that i could implement versioning with source safe, but can i implement this in the way that i've referenced before. Can i use CVS?
Thanks,
Vítor Ferreira
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Oct 19, 1999
Hi everyone,
Is versioning SQL Server 7.0 stored procedures with VSS possible? If so,
how? How are people versioning stored procedures out there?
Thanks in advance...
bth@prucka.com
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Jan 10, 2006
For the past few months I've been developing an DW and ETL with SQL
2005 / SSIS. My packages are being deployed to a SQL
Server. Although in the end game we will have a
Dev/Staging/Production environments, I would still like to archive
production packages when we push staging to production.
Essentially I would like to archive the last X packages that were
deployed to production where X is a reasonable number (3 - 5). I
don't necessarily need to have them accessible to run. One of the
purposes is to have another safeguard should we miss anything in user
testing and need to roll back a deployment.
I am utilizing VSS and we will have backups running on the production
server, but I would prefer to have a archive that is a little more
accessible.
I just wondering if anyone has any thoughts on how to extract/archive
production packages when the push is made. I could easily develop
an app that queries the MSDB and exports the packages to the file
system.
Anyone have any thoughts?
Larry Pope
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Oct 23, 2007
Edited:Maybe I should have posted this to the "managed" newsgroup. If any admins think that would be better, then let me know. I don't want to duplicate unnecessarily.
Hi,
We developed a custom Control Flow task for SSIS (2005, not yet had a lot of time to look at 2008 yet) and found that it does not handle versioning, or an uninstall and the resulting lack of an addressable component very gracefully.
Here is a typical scenario:
Baseline
Install component MyCustomTask 1.0
Create Project
Save Project
Action 1
Uninstall MyCustomTask 1.0 and don't install the new version (a typical user scenario!)
Open Project
SSIS acts like the world has ended, especially if the user forgot to manually remove the item from the toolbox
Fix:None, obviously, but it would be nice to be a bit more graceful and informative.
Backdoor Toolbox fix: "Cleanse" the toolbox when it goes haywire by deleting the toolbox.tbd, in Documents and Settings<UserName>Local SettingsApplication DataMicrosoftVisualStudio8.0
Action 2
Uninstall MyCustomTask 1.0 cleanly, plus removing the toolbox item by hand.
Install MyCustomTask 1.1, with identical interfaces etc, and add the toolbox item by hand.
SSIS acts like the world has ended, and fails to ask you a sensible question like "do you want to upgrade the project to use the new version of the component"
Fix:Identify major and minor version component changes and throw the user a rope.
Backdoor Fix: Go into the DTSX manually - attack the DTSExecutable ExecutableType and DTS Name, for a Task in our case and replace it with the new version info. Even if the interface for the component has changed slightly, it seems to deal with that OK.
Given the fact that it seems to be very likely that there will need to be SSIS version specific builds of components (I am assuming that a task created in 2005 will not work with 2008), what is the best way to deal with the current lack of SSIS smarts.
Would this be the best approach:
Version the interfaces, but never the builds within a version i.e. My.CustomTask90 v1.0, My.CustomTask100 v1.0 etc.
This is a bit of a pain, rather than the simpler My.CustomTask v9.0 / v10.0 etc.
Or, are there some nice improvements in the pipe to alleviate this, plus perhaps even a way to programatically add components to the toolbox, rather than the low-rent method of getting the user to do it by hand.
All suggestions gratefully received.
Thanks in advance
Gareth
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Jul 20, 2005
in simple words it's about versioning at record level.ExampleTableEmployee - EmployeeId, EmployeeName,EmployeeAddress, DepartmentId,TableDesignationMap - EmployeeId, DesignationId, EffectiveDate,validityTableDepartment - DepartmentId, DepartmentTableDesignation - DesignationId, designationVia Modify-Employee-Details screen following are editableEmoyeeNameEmployeeAddressDepartmentDesignationthis screen should allow user to navigate through changes history.Example :Version -1EmoyeeName John SmithEmployeeAddress 60 NewYorkDepartment AccountsDesignation AccountantVersion -2EmoyeeName John SmithEmployeeAddress 60 NewYorkDepartment AccountsDesignation Chief Accountant - changedVersion -3EmoyeeName John SmithEmployeeAddress 60 NewYorkDepartment Sales - changedDesignation Marketing Manager - changedQuestion :What is the best proposed database design for maintaining historyrecords bound with version and retrieval techniqueBest RegardsSasanka
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Dec 27, 2007
I have a question on locking pattern of read committed with snapshot isolation level that when two transaction update two different records then why do they block to each other even if they have previous committed value (old version of record).
I executed the below batch from a query window in SSMS
--Session 1:
use adventureworks
create table marbles (id int primary key, color char(5))
insert marbles values(1, 'Black')
insert marbles values(2, 'White')
alter database adventureworks set read_committed_snapshot on
set transaction isolation level read committed
begin tran
update marbles set color = 'Black' where color = 'White'
--commit tran
Before committing the first transaction I executed below query from second query window in SSMS
--Session 2:
use adventureworks
set transaction isolation level read committed
begin tran
update marbles set color = 'White' where color = 'Black'
commit tran
Here the first session blocks to second session. These same transactions execute simultaneuosly in snapshot isolation level. So my question is why this blocking is required in read committed with snapshot isolation level?
Thanks & Regards,
Subhash Chandra
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